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Why VPN exit IP changes do not always mean a leak

A changing VPN address can be normal. Learn what a VPN leak test checks, how to spot a real exposure, and what to change next.

Kevin DoyleHardware tests Tests 5 min read

Your IP address changes after you reconnect to a VPN, switch servers, or reopen a browser. That does not automatically mean your real address is exposed. A VPN can use many exit addresses, and the address websites see may change as the service moves your connection between them.

To check whether the VPN is exposing your real IP through the browser, use the VPN Leak Test. It checks for exposure through IPv6 and WebRTC while your VPN is on. It does not tell you whether every app on your device is protected, or test for DNS leaks.

Check whether the VPN is exposing your IP

  1. Connect to your VPN and wait until its app says the connection is active. Note the selected server or location.
  2. Open the VPN Leak Test in the browser you want to check. Keep the VPN connected while you run it.
  3. Review the addresses the test finds. Compare them with the address or location shown by your VPN app, if it provides that information. An exact location match is not guaranteed because IP location databases can be inaccurate.
  4. Reconnect to the same VPN location and test again. If the VPN assigns a different exit address but the test still shows VPN addresses, the change alone is not evidence of a leak.
  5. If you use a browser VPN extension, check the browser it protects. An extension may route only that browser's traffic, while a VPN app may cover more of the device.

Do not disconnect your VPN just to compare addresses if you need the protection right now. If you already know your normal public IP from a previous check, you can compare it with the test result. Otherwise, focus on whether the test identifies an address from your regular internet connection while the VPN is active.

What the result means

The address changes, but the test shows VPN addresses

This is usually normal. VPN providers use multiple exit servers, and a reconnect or server change can give you a new public IP. Some services also rotate addresses without changing the location you selected. Websites may therefore see a different address even though your traffic still goes through the VPN.

The test finds your regular IPv6 address or WebRTC exposes it

This is a stronger sign that the browser may be revealing an address outside the VPN tunnel. IPv6 is a newer internet addressing system. WebRTC is a browser feature used for live audio and video connections. Depending on the VPN and browser setup, either may reveal an address that identifies your regular connection. Follow the fixes below, then test again.

The test shows a VPN address that does not match the selected city

That can happen without a leak. IP location databases estimate where an address is used, and their results can be outdated or inaccurate. A server labeled for one city may use an address registered or mapped to another region. Check the VPN app's server details, not just a map or a website's location guess.

The VPN test looks clear, but one app shows your real location

The test checks what this browser can reveal through IPv6 or WebRTC. It cannot confirm that another app is using the VPN. A split-tunnel rule may send selected apps outside the VPN, or a browser extension may protect only its own traffic. Check that app's connection and the VPN's routing options separately.

How to fix a possible leak

  1. Reconnect to the VPN. Disconnect and reconnect in the VPN app, then repeat the test. If only one server location produces an exposed address, try another server and report the result to the VPN provider.
  2. Check whether the VPN covers the whole device. A browser extension may protect only browser traffic. Use the VPN app's full-device connection if you need other apps covered. On Windows 11, check configured connections under Settings › Network & internet › VPN. On macOS, check System Settings › VPN. The provider's own app may have separate controls.
  3. Review split tunneling. Split tunneling lets you choose which apps use the VPN and which connect directly. Turn it off temporarily, or remove the affected browser from any bypass list, then run the test again. The option is usually in the VPN app, and its name and location vary.
  4. Check the browser's site permissions and privacy extensions. Temporarily pause extensions that alter network or WebRTC behavior, then test again. If the result changes, turn extensions back on one at a time to identify which one affects the check.
  5. Check the VPN protocol and IPv6 options. If the provider offers another protocol or an IPv6 leak protection setting, try its recommended configuration. Do not disable IPv6 across your whole computer as a first step. That can disrupt some networks and does not fix every routing problem.
  6. Update the VPN app and browser. Install available updates, restart the browser, reconnect to the VPN, and repeat the check. If the same non-VPN address still appears, send the provider the test result and the server location you used.

What this test does not prove

A VPN leak check is not a full privacy audit. This test looks for real IP exposure through IPv6 or WebRTC in the browser. It does not inspect all traffic from every app, confirm that a VPN provider keeps no activity records, or test DNS routing. DNS is the service that looks up website names, such as turning a domain into an IP address. If you suspect a DNS leak, use a separate DNS leak check while the VPN is connected.

A changed exit IP is a normal part of many VPN connections. The important question is whether a test while the VPN is active can see an address from your regular connection, not whether every reconnect produces the same VPN address.

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